There is a whole category dedicated to this subject here on HGF: http://www.handgunforum.net/home-defense-target-ammunition/
What 9mm ammo is considered best self defense load? I checked past threads, but couldn't find any.
ll handguns are different. You might know a guy that used one brand and it might be great in his but in yours it might trey to hang up or just not group as well as you think i should. It's best to get a box or so of a few and see what gives the best results. Feeding, grouping are much more important tan what expands best in a bunch of wet newspapers.
Gold dots or winchester ranger/talon IMO